Tanker Familiarization Tanker Systems and Equipment 5

Question 1

What is the function of a 'spill valve' (also called overflow valve) in a tanker cargo system?

Accepted Answer

To automatically divert overflow back to a slop tank during loading

Answer

To drain bilge water overboard during rough weather

Answer

To release excess inert gas pressure to atmosphere

Answer

To control product flow between port and starboard tanks

Question 2

What is the recommended oxygen content (by volume) inside a cargo tank declared 'inerted'?

Accepted Answer

Less than 11%

Answer

Less than 8%

Answer

Less than 21%

Answer

Less than 15%

Question 3

Which document lists the physical and chemical properties, hazards, and emergency procedures for a specific liquid cargo?

Accepted Answer

Safety Data Sheet (SDS / MSDS)

Answer

Port State Control inspection checklist

Answer

Certificate of Fitness

Answer

Cargo Manifest

Question 4

A tanker crew notices the inert gas blower fan vibrating abnormally. What is the most appropriate immediate action?

Accepted Answer

Shut down the blower and investigate before resuming cargo operations

Answer

Continue operations and log the observation for the next port

Answer

Increase blower speed to overcome the vibration

Answer

Switch to manual venting through the P/V valves only

Question 5

What is the purpose of a 'fixed gas detection system' on a tanker?

Accepted Answer

To continuously monitor cargo tank and pump room atmospheres for flammable or toxic gases

Answer

To measure cargo temperature continuously

Answer

To detect water leaks in ballast tanks

Answer

To alert crew to rising ambient noise levels in the pump room

Question 6

On a chemical tanker, what does 'tank coating compatibility' mean?

Accepted Answer

Ensuring the tank lining material is not damaged or contaminated by the specific cargo loaded

Answer

The ability of the tank paint to withstand high pump pressures

Answer

The thermal insulation properties of the tank walls

Answer

The ability of the tank coating to reflect radar signals

Question 7

Which international code governs the construction and equipment standards for ships carrying liquefied gases in bulk?

Accepted Answer

IGC Code

Answer

IBC Code

Answer

IMDG Code

Answer

BCH Code